Home / 198,770.40-274,345.92-130,793.58

Finding the Fourth Proportional to 198,770.40, 274,345.92 and 130,793.58

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Solution

The fourth proportional to 198,770.40, 274,345.92 and 130,793.58 is: 180,523.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,770.40 : 274,345.92 = 130,793.58 : x
  2. Step 2: Convert to fraction form
    198,770.40/274,345.92 = 130,793.58/x
  3. Step 3: Cross multiply
    198,770.40x = 274,345.92 × 130,793.58
  4. Step 4: Simplify right side
    198,770.40x = 35,882,685,035.19
  5. Step 5: Solve for x
    x = 35,882,685,035.19/198,770.40
  6. Step 6: Final answer
    x = 180,523.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.